The optimal number of hard sets per body part in a session to maximize hypertrophy is approximately six to ten sets.

“the sweet spot is what maximizes per body part is probably about six to 10 sets in a session”

“you could push your arms shoulders and chest not to 14 or 15 or 20 sets per week but in many cases 25 30 35 sets per week and experience very meaningful growth enhancements that you would never have seen only ever training those 15 sets a week”

“there's kind of a dose response between number of hard sets you do and muscular growth I mean we've even seen it like specifically in the triceps there was a there was a regression by James creger that even up to like 27 to 45 hard sets per week on triceps produce more muscle growth than I think like 15 to 25 sets per week something like that”